From 4e644fffb5809d260bb7adcc49cb87d79b88ba3d Mon Sep 17 00:00:00 2001
From: Hawking Zhang <Hawking.Zhang@amd.com>
Date: Wed, 5 Jun 2019 14:57:00 +0800
Subject: drm/amdgpu: add ras_controller and err_event_athub interrupt support
Git-commit: 4e644fffb5809d260bb7adcc49cb87d79b88ba3d
Patch-mainline: v5.5-rc1
References: bsc#1152489
Ras controller interrupt and Ras err event athub interrupt are two dedicated
interrupts for RAS support.
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h | 4 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 14 +++
drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 125 +++++++++++++++++++++++
3 files changed, 143 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
index 28417e485c58..a04c5ea03418 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h
@@ -79,10 +79,14 @@ struct amdgpu_nbio_funcs {
void (*remap_hdp_registers)(struct amdgpu_device *adev);
void (*handle_ras_controller_intr_no_bifring)(struct amdgpu_device *adev);
void (*handle_ras_err_event_athub_intr_no_bifring)(struct amdgpu_device *adev);
+ int (*init_ras_controller_interrupt)(struct amdgpu_device *adev);
+ int (*init_ras_err_event_athub_interrupt)(struct amdgpu_device *adev);
};
struct amdgpu_nbio {
const struct nbio_hdp_flush_reg *hdp_flush_reg;
+ struct amdgpu_irq_src ras_controller_irq;
+ struct amdgpu_irq_src ras_err_event_athub_irq;
const struct amdgpu_nbio_funcs *funcs;
};
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 016ea274b955..f7180109bef4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -29,6 +29,7 @@
#include "amdgpu.h"
#include "amdgpu_ras.h"
#include "amdgpu_atomfirmware.h"
+#include "ivsrcid/nbio/irqsrcs_nbif_7_4.h"
const char *ras_error_string[] = {
"none",
@@ -1500,6 +1501,7 @@ static void amdgpu_ras_check_supported(struct amdgpu_device *adev,
int amdgpu_ras_init(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
+ int r;
if (con)
return 0;
@@ -1527,6 +1529,18 @@ int amdgpu_ras_init(struct amdgpu_device *adev)
/* Might need get this flag from vbios. */
con->flags = RAS_DEFAULT_FLAGS;
+ if (adev->nbio.funcs->init_ras_controller_interrupt) {
+ r = adev->nbio.funcs->init_ras_controller_interrupt(adev);
+ if (r)
+ return r;
+ }
+
+ if (adev->nbio.funcs->init_ras_err_event_athub_interrupt) {
+ r = adev->nbio.funcs->init_ras_err_event_athub_interrupt(adev);
+ if (r)
+ return r;
+ }
+
if (amdgpu_ras_recovery_init(adev))
goto recovery_out;
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
index 6ecdd5e3ca3f..faf9300630a5 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
@@ -27,6 +27,7 @@
#include "nbio/nbio_7_4_offset.h"
#include "nbio/nbio_7_4_sh_mask.h"
#include "nbio/nbio_7_4_0_smn.h"
+#include "ivsrcid/nbio/irqsrcs_nbif_7_4.h"
#include <uapi/linux/kfd_ioctl.h>
#define smnNBIF_MGCG_CTRL_LCLK 0x1013a21c
@@ -345,6 +346,128 @@ static void nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring(struct amdgpu_d
}
}
+
+static int nbio_v7_4_set_ras_controller_irq_state(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *src,
+ unsigned type,
+ enum amdgpu_interrupt_state state)
+{
+ /* The ras_controller_irq enablement should be done in psp bl when it
+ * tries to enable ras feature. Driver only need to set the correct interrupt
+ * vector for bare-metal and sriov use case respectively
+ */
+ uint32_t bif_intr_cntl;
+
+ bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL);
+ if (state == AMDGPU_IRQ_STATE_ENABLE) {
+ /* set interrupt vector select bit to 0 to select
+ * vetcor 1 for bare metal case */
+ bif_intr_cntl = REG_SET_FIELD(bif_intr_cntl,
+ BIF_INTR_CNTL,
+ RAS_INTR_VEC_SEL, 0);
+ WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL, bif_intr_cntl);
+ }
+
+ return 0;
+}
+
+static int nbio_v7_4_process_ras_controller_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ /* By design, the ih cookie for ras_controller_irq should be written
+ * to BIFring instead of general iv ring. However, due to known bif ring
+ * hw bug, it has to be disabled. There is no chance the process function
+ * will be involked. Just left it as a dummy one.
+ */
+ return 0;
+}
+
+static int nbio_v7_4_set_ras_err_event_athub_irq_state(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *src,
+ unsigned type,
+ enum amdgpu_interrupt_state state)
+{
+ /* The ras_controller_irq enablement should be done in psp bl when it
+ * tries to enable ras feature. Driver only need to set the correct interrupt
+ * vector for bare-metal and sriov use case respectively
+ */
+ uint32_t bif_intr_cntl;
+
+ bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL);
+ if (state == AMDGPU_IRQ_STATE_ENABLE) {
+ /* set interrupt vector select bit to 0 to select
+ * vetcor 1 for bare metal case */
+ bif_intr_cntl = REG_SET_FIELD(bif_intr_cntl,
+ BIF_INTR_CNTL,
+ RAS_INTR_VEC_SEL, 0);
+ WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL, bif_intr_cntl);
+ }
+
+ return 0;
+}
+
+static int nbio_v7_4_process_err_event_athub_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ /* By design, the ih cookie for err_event_athub_irq should be written
+ * to BIFring instead of general iv ring. However, due to known bif ring
+ * hw bug, it has to be disabled. There is no chance the process function
+ * will be involked. Just left it as a dummy one.
+ */
+ return 0;
+}
+
+static const struct amdgpu_irq_src_funcs nbio_v7_4_ras_controller_irq_funcs = {
+ .set = nbio_v7_4_set_ras_controller_irq_state,
+ .process = nbio_v7_4_process_ras_controller_irq,
+};
+
+static const struct amdgpu_irq_src_funcs nbio_v7_4_ras_err_event_athub_irq_funcs = {
+ .set = nbio_v7_4_set_ras_err_event_athub_irq_state,
+ .process = nbio_v7_4_process_err_event_athub_irq,
+};
+
+static int nbio_v7_4_init_ras_controller_interrupt (struct amdgpu_device *adev)
+{
+ int r;
+
+ /* init the irq funcs */
+ adev->nbio.ras_controller_irq.funcs =
+ &nbio_v7_4_ras_controller_irq_funcs;
+ adev->nbio.ras_controller_irq.num_types = 1;
+
+ /* register ras controller interrupt */
+ r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF,
+ NBIF_7_4__SRCID__RAS_CONTROLLER_INTERRUPT,
+ &adev->nbio.ras_controller_irq);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static int nbio_v7_4_init_ras_err_event_athub_interrupt (struct amdgpu_device *adev)
+{
+
+ int r;
+
+ /* init the irq funcs */
+ adev->nbio.ras_err_event_athub_irq.funcs =
+ &nbio_v7_4_ras_err_event_athub_irq_funcs;
+ adev->nbio.ras_err_event_athub_irq.num_types = 1;
+
+ /* register ras err event athub interrupt */
+ r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF,
+ NBIF_7_4__SRCID__ERREVENT_ATHUB_INTERRUPT,
+ &adev->nbio.ras_err_event_athub_irq);
+ if (r)
+ return r;
+
+ return 0;
+}
+
const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
.get_hdp_flush_req_offset = nbio_v7_4_get_hdp_flush_req_offset,
.get_hdp_flush_done_offset = nbio_v7_4_get_hdp_flush_done_offset,
@@ -368,4 +491,6 @@ const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
.remap_hdp_registers = nbio_v7_4_remap_hdp_registers,
.handle_ras_controller_intr_no_bifring = nbio_v7_4_handle_ras_controller_intr_no_bifring,
.handle_ras_err_event_athub_intr_no_bifring = nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring,
+ .init_ras_controller_interrupt = nbio_v7_4_init_ras_controller_interrupt,
+ .init_ras_err_event_athub_interrupt = nbio_v7_4_init_ras_err_event_athub_interrupt,
};
--
2.28.0